1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.upload;
24  
25  import com.liferay.portal.kernel.util.ProgressTracker;
26  import com.liferay.portal.kernel.util.Validator;
27  
28  import java.util.List;
29  import java.util.Map;
30  
31  import javax.servlet.http.HttpServletRequest;
32  import javax.servlet.http.HttpSession;
33  
34  import org.apache.commons.fileupload.FileItem;
35  import org.apache.commons.fileupload.FileItemFactory;
36  import org.apache.commons.fileupload.FileUploadException;
37  import org.apache.commons.fileupload.servlet.ServletFileUpload;
38  
39  /**
40   * <a href="LiferayFileUpload.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Myunghun Kim
43   * @author Brian Wing Shun Chan
44   */
45  public class LiferayFileUpload extends ServletFileUpload {
46  
47      public static final String FILE_NAME =
48          LiferayFileUpload.class.getName() + "_FILE_NAME";
49  
50      public static final String PERCENT = ProgressTracker.PERCENT;
51  
52      public LiferayFileUpload(
53          FileItemFactory fileItemFactory, HttpServletRequest request) {
54  
55          super(fileItemFactory);
56  
57          _session = request.getSession();
58      }
59  
60      public List<LiferayFileItem> parseRequest(HttpServletRequest request)
61          throws FileUploadException {
62  
63          _session.removeAttribute(LiferayFileUpload.FILE_NAME);
64          _session.removeAttribute(LiferayFileUpload.PERCENT);
65  
66          return super.parseRequest(request);
67      }
68  
69      /**
70       * @deprecated
71       */
72      protected FileItem createItem(Map headers, boolean formField)
73          throws FileUploadException {
74  
75          LiferayFileItem item = (LiferayFileItem)super.createItem(
76              headers, formField);
77  
78          String fileName = item.getFileName();
79  
80          if (Validator.isNotNull(fileName)) {
81              _session.setAttribute(LiferayFileUpload.FILE_NAME, fileName);
82          }
83  
84          return item;
85      }
86  
87      private HttpSession _session;
88  
89  }